Ratchasan district

Ratchasan (ราชสาส์น, ) is a district (amphoe) in the central part of Chachoengsao province, central Thailand.

History
The area of Ratchasan was separated from Phanom Sarakham district and became a minor district (king amphoe) on 16 February 1977. It was upgraded to a full district on 4 July 1994.

Geography
Neighboring districts are (from the east clockwise): Phanom Sarakham, Plaeng Yao, and Bang Khla of Chachoengsao Province; and Ban Sang of Prachinburi province.

The important water resource is the Khlong Tha Lat.

Central administration
Ratchasan is divided into three sub-districts (tambons), which are further subdivided into 31 administrative villages (mubans).

Local administration
There are three sub-district administrative organizations (SAO) in the district:
 * Bang Kha (Thai: องค์การบริหารส่วนตำบลบางคา) consisting of sub-district Bang Kha.
 * Mueang Mai (Thai: องค์การบริหารส่วนตำบลเมืองใหม่) consisting of sub-district Mueang Mai.
 * Dong Noi (Thai: องค์การบริหารส่วนตำบลดงน้อย) consisting of sub-district Dong Noi.